Qt: draw multiple QGraphicsScene in a single QGraphicsView

I'm trying to draw many scenes on different views. All the scenes have a big common part, so I was thinking that the most efficient way to do this would be to create a common QGraphicsScene and many specific QGraphicsScene. Each view should then draw a combination of the common and specific QGraphicsScene. But up to now I've been unable to understand whether drawing the content of two or more QGraphicsScene in a single QGraphicsView is possible or not. I'm quite new to Qt and GraphicsView so I would need some help to understand this issue. Thanks.